Shingle and method of cutting the same



Jan. 21, 1 .930. C. w. M.R'T MER- ,744,49

SHINGLE \ND METHOD OF CUTTING THE SAME Filed July 9, 1924 a so-called felt base with waterproofing ma-- Patented Jan. 21, 1930 UNITED STATES PATENT OFFICE CHARLES W. MORTIMER, 0F UPPER MONTGLAIR, NEW JERSEY, ASSIGNOR TO THE BAR- RETT COMPANY, A CORPORATION OF NEW JERSEY SHIN GLE AND METHOD OF CUTTING THE SAME Application filed July 9,

This inventionrelates toashingle or shingle strip and the process o't'cuttingthe same from a. sheet of rooting' material. It relates more particularly to the sort of shingle that is cut from a roofing sheetthatismade by saturating terial such as asphalt, coating the same with plastic material such as asphalt, for example, and applying. thereto a layer of wear-resisting material such as crushed stone, slate, etc.

By the present invention, shingles or shingle strips are produced which have projecting tabs'along one edge with spaces therebetween so that the shingle can be installed on a roof in such a manner that six-sided or hexagon shaped figures will be exposed to the observer. It has been found that in installing shingles or shingle strips of this sort there is: danger of leakage occurring at the oints made by layingthe shingles in horizontal rows on the roof. By the present invention the joints are made more secure against leakage without detracting from the attractive design of the shingle. At the same time the shingles or shingle strips may be cut from sheets of roofing material without any waste of material.

The invention will be understood from the description in connection with the accompanying drawings, in which Fig. 1 is a plan view showing how the shingles may be cut from a sheet of roofing material Fig. 2 is a plan view of a modification;

Fig. 3'is a plan view of a second modification; and

Fig. 4 is a plan view showing how the shingles may be installed upon aroof.

In the drawings reference character A indicates a sheet or strip of rooting material having parallel sides which may be cut along the zig-Zag lines 1, 2 and 3 at intervals. The lines 2 join the lines 1 and 3 preferably at the same angle which the lines 1 and 3 make with the edges of the roofing strip so that the sides of the tabs or projections 4 are bounded 1924. 'Serial No. 724,939.

shingles opposite the tabs 4 to one side of the middle point of these edges.

Instead of having the projections 12 of reetangular shape as just described the shingles may be out from a roofing strip along serpentine lines as shown at 13 and 14 (Fig. 2) thus producing semi-circular projections or projections having'other curved outlines. Or the strips can be cut transversely as shown at 15,16 and 17 (Fig. 3) to produce triangular shaped projections. The projections just described are preferably spaced so that the central portion or highest part thereof is placed a distance from the central point of this edge equal to one-half the distance the line 2 measures along lines parallel to lines 1 and 3. That is, the width of the projections 12, etc., should equal one-fourth the difference between the widest and the narrowest portions of the tabs 4.

In installing these shingles upon a roof, horizontal rows of the same are'laid as shown at 1, 1 and 1 (Fig. 4) with their horizontal ends abutting. The series 1 is laid so that the ends 18 015 their tabs coincide with the lines 19 along the lower side of the narrow portion of the shingles. Their wide ends 20 then extend across the middle portion of the extensions or projections 12 of shingles in the subjacent row.

The protection afforded by the projections 12 is obvious when the projection designated by the reference. character 12 in Fig. 4 is observed. It is obvious that if the tab 4 in the third row should be blown up by the wind there would be only a short distance for water to travel along the dotted lines 21 before it would reach the line 22 of the usual shingle and cause leakage. However, with the projection 12 underlying the joint made by thelines 21, the water has this much greater distance to travel upwardly before getting under the shingle.

The lower edge of the narrow portion of i the shingles in the row 1' may be nailed down to prevent the same from curling up by driving nails throughthe same near the point ed corner of the shingle as the nail heads would be covered by the tabs 4 of a higher row of shingles and since these portions of the shingles 1 are closely held down the danger of water being blown upwardly into the indentation P corresponding to the projection 12 is minimized.

It is obvious that instead ofhaving a roofing sheet of sulficient width to produce single shingles as above described, the roofing sheet maybemade wide enough to produce a plurality of shingles joined end to end or so-called tab along one edge and at one end of the said body portion adapted to be exposed to the weather when a number of said shingles are laid upon a roof and a weathering projection on the other edge approximately in line with one end of said tab. v

2. In a shingle, a main body portion, a tab along one edge and at one end of the said body portion adapted to be exposed to the weather when a number of said'shingles are laid upon a roof and a weathering projection and an indentation along the other.

edge approximately in' line with one end of said tab.

3. In a shingle, a main body portion, a tab along one edge and at one end of the said body portion adapted to be exposed to the weather when a number of said shingles are laid upon a roof and a weathering projection and an indentation contiguous to each other and of substantially the same size and shape along the other edge approximately in line with one end of said tab.

4. In a shingle, a main body portion, a tab along one edge and at one end of the said body portion adapted;to be exposed to the weather when a number of said shingles are laid upon a roof and a weathering projection on the other edge having one of its extremeties coinciding with the middle point of said edge.

5. In a shingle, a main body portion, a tab along one edge and at one end of the said body portion having converging sides and being adapted to be exposed to the weather when a number of said shingles are laid upon a roof and a weathering projection on the other'edge approximately in line with one end of said tab.

6. In a shingle, a main body portion, a tab along one edge thereof havlng converging sides and being adapted to be exposed to the weather when a number of said shingles are laid upon a roof and a weathering projection on the other edge displaced from the central point of said edge a distance equal to substantially one-fourth the amount by which the widest portion of said tab exceeds its narrowest portion.

7. In a shingle, a main body portion, a tab along one edge thereof having converging sides and being adapted to be exposed to the weather when a number of said shingles are laid upon a roof and a weathering projection on the other edge approximately in line with one end of saidtab, the ends of said shingle being parallel with each other and also parallel with one side of said tab. 7

8. In a shingle, a main body portion, a tab sides and being adapted to be exposed .to the weather when a number of said shingles are laid upon a roof and a weathering projection on the other edge approximately in line with one end of said tab, the ends of said shingle being parallel with each other and also parallel with one edge of said tab, the edge of said tab and one end of said body portion coinciding.

10. In a shingle, a main body portion, a tab along one edge and at one end of the said body portion having converging sides and being adapted to be exposed to the weather when a number of said shingles are laid upon a roof and a weathering projection on the other edge approximately in line with the inner end of said tab, the ends of said shingle being parallel with each other and also parallel with one edge of said tab, the edge of said tab and one end of said body portion colnciding.

In testimony whereof I afiix my signature.

CHARLES W. MORTIMER. 

